SVG 1.0: Scalable Vector Graphics

SVG is easily the most surprising XML language the World Wide Web Consortium has put out to date. Simply put, it is an XML language for defining images.

Now that's cool. Because it's XML, you can tweak an effect that's slightly “off” here and there, and get it exactly the way you want it. Sweeping and tiny changes are both possible simultaneously. Ever hear of hand-coding a newspaper cartoon? With SVG, it's possible.